Heater



March 19,v 1935. A COURTEMANCHE ,994,690

HEATER Filed Jan. 5l, 1934 DDDCIDUDDDDUDDDIDDUUD DEDDDIIIUCIDDEDDDDDDUDDDDDDDDUDDDCIDUDDEU Il lli' Il 0 L17 11 INvENToR E g Hnfomo Coz/remaneATTO Nav Patented Mar. 19, 1935 .Antonio Courte This invention relatestoair'nprovements in a vHEATER manche, Montreal, Quebec,

, y A Genade i pplicaticn january 3152-1934, Serial No. 709,195 InCanada January 31, 1933 Y sc lziims.;`-L (c1. 25u-15o) heater andappertains particularly to a radiator unit of the so-called concealedtype. i

An object of the invention is to'provide a con f; cealed heater formedpreferably of :a single casting that includes at least a pair oflaterally spaced parallel fluidchambers extending horizontally between'end manifolds or headers.

AA further object of the invention is toprovide such a concealed heaterunit with vertical trans-` verse iins that bridge-the space between theiiuid chambers and extend beyond the outer edges ofthe chamberstherebyiorming a series of air lues or stacks in the centre that issurrounded by the heating fluid and free iins extending out-V wards. i

A further object of the invention is toprovide a concealed heating unitwithltransverse verticalns forming vertical air iiues between thelater'` v ally spaced horizontal fluid chambers and whose outer freeedges canV be brought contiguousto `or into contact with anfenclosingstructure to prof vide additional half heated stacks withtheaccompanying saving of material and conservation'. of spacethat wouldbe denied if'enclosingwalls or partitions wereV formed along the ns freeouter Apfurther object ofi the invention -to provide a concealed heatingunitin, which a series of ver-l .tical stacks isV completelysurroundedby a fluid passage (the specially designed ends or headersvbeing includedas part of the continuous passage). Y

A stillnfurther object of theV invention isthe provision of a heater ofthe nature Vand `for their purposes described that is characterized bystruc:

tural simplicity, durability,. compactness, efficiency and low cost ofproduction whereby the sameV is rendered commercially desirable. f

To the accomplishment of these and related ob-` jects as shall becomeapparent as'the description proceeds, the inventionresides, in theconstruc tion, combination andarrangement ofrparts as shall behereinafter more fully described illustrated in the accompanyingdrawing, and pointed out in the claims hereunto appended.

The invention will be best understood andV can be more clearly describedwhen referenceris had to the drawing forming a part of this disclosurewherein like characters indicate like parts throughout the severalviews.

In the drawing:-

Figure 1 is a front elevation'of the heater in a conventional concealedinstallation;

Figure 2 is a plan View of the heater unit Figure 3 is an end elevation;

VFigure 8 is a similar sectional elevation showing-f an alternative formof vertical coupling. i

This concealed heater is a one. piece castlironf imit of square orrectangular cross section and of; i i

even dimensions throughout its considerable length.` The length of theunit may beifrom ,12V or 14 inches and Vupwards or larger units may, beysubstitutedbya number of smaller standard units that are readily coupledeither vertically or horir zontally to suitthe space available.Theconserv- Y ing of space is one of the principal advantages,v ofithisheater that possesses enormous heating,

'surface in proportion to its over all dimensions--l and the providingoffree edge iins enables the. unit to beplaced contiguous to or even incontact with the front and back enclosing `walls while still employingthe heat conduction surfaces to the fullest advantage. The seriesV ofvertical;

' centre, stacks set up positive convection currents,E

to further which the luidchambers are tapered.; slightly toward the topto permit of; the normal expansionof the heated air passingtherethrough. The draft or current of warm air passing A,upwardsthroughthe centralstacks will naturally be more rapid and consequentlyof greater volurne than through the Y stacks or passages 'estaba lishedby the free edges of the fins being placed: near the front and Vbackenclosing walls but serves to accelerate the outside currents,. the

outer currents being led by the stronger central*v 011B. Y t j The Vonepiece cast iron unit 10 has -angupright rectangular header 1l at eachend with' two threaded openings 12, one `near the top andfl one near thebottom extending longitudinally through the headers end wall, beingvertically aligned and centrally of the sides. The headers 11 are alsoeach provided with a threaded opening 13 through the Vtop wall andthrough the bottom wall, centrally of the sides and aligned with thepassage or chamber in the header producing thereby a complete straightvertical passage through the end manifold orv header. An annularthickened portion 14 surrounds each of the vertical openings 13 to Vgivethe necessary material for the threading to receive the coupling andserve as vertical spacers when the units may so that the wholeskeletcnappears as a pair of spaced boxes standing on end with their front andback sides continued to ymeet each other thereby enclosing within theb'oxlike Vheaders and the relatively thin vertical fluid chambers a longnarrow deep ilue orrstack" 16 entirely sur- 1 rounded by a fluidcontaining housing.v 1 A Longitudinally spaced vertical transverse lin l20 17 arecast integral with the structure Vand are of the same heightthe longitudinal fluid chambers 15 and headers 11'. The' series of thesens extends the -full length ofV thecasting and though-interrupted by theheaders, bridge the out Vtherzsidesa. distance equalV to substantiallyone half the distance between the. laterally spaced fluid chambers-'15"andtheir: outer edges 30. are free. The endiins. Algviiush with theopposite lendsY of-.the.headersmay be thickenedrif desired, fongreater.strength against Ybreakage or vto .provide adequate I material forreceiving supporting. legs. l VTheiiuid VAchambers 15`wi1l 35 preferablytaper vertically to'prevent steam from trapping vor Water frombecomingair bound and the vouterv Walls thereof beingA of correspondingvconfiguration aids in 'establishing `the air current by allowingwiderairY passages toward the 40,.: top of s the vrflues for thefexpandedfwarm' air,

nevertheless the opposite free edges'of Atherns are parallelandperpendicular.

In Figures A5 and()` the unit 20 is shown 'with three fluid chambers 21,the centre of V*which- 45 divides the generalcentral air flue orstack'221 in Ytwo but here also' it will be seen that theV outer orfree-'edges of the 'iins 22 remainin the! same vdimension"relation tothe"distance be-l tweenadjacent'iluid chambers, being" one lhalf portions.-In assembling several units, the vertical stacking may be accomplishedbyusing left and right hand'threaded nipples 24 inserted with a keyinthe adjacent vertical openingsl or the usual oppcsitely threadedcoupling 25' (shown in Figu re 8)` may be used. Forv horizontal or longitudinal couplings the hexagonal 'nipples 26 will preferably be employed.

60 The legs V21 threaded intothe headersfor-end fins are useful whenvthe vinlet pipe-28'is brought in'from the end as shown in Figure 1, butif'itv iiue 16 separating them,'dividing it into a plu-v rality.; of airflues or stacks. Theyvalso vextendY the length of one ofthe intermediatebridging comes in the bottom at one end and the outlet 'n leads from theyopposite end and an air line .or valve 29 Ais employed, angle brackets30 areb'etter employed,their upper angle being forked with asemi-circular recess that embraces the thick- 5 ened reinforcement V14and prevents lateral as well as longitudinal displacement of theunit; Y*

.This heaterrhas been especially. designed for hot Water, vapor and 10Wpressure steamheating Y systems, used with 'which it gives a maximum of10 Y heating eciency for the space occupied. Y

` From the foregoing description takenY in con-gY .nection with theaccompanying drawing,'it will bev manifest that a heater is providedthat vwill full all 'the necessary requirements of suchV a. 15

`'device but as many changes couldbe made inthe1 above l:descriptionand" many apparently VWidely different embodiments of Ymy invention maybe* i constructed -Within the scope of theVA appended claims withoutdeparting'from the spirit or scopeVV Y'20 Y Y thereof, itis intendedthatall matters contained in Athe said accompanying specication -and drawingshall be interpreted as illustrative and not in-a limitative orrestrictive sense. if

Having Ythus described Vclaimed as new is:

Vl.. A concealed heatery unit comprising a slnf-jV gle casting with endheaders; laterally spaced,-` f longitudinally .extending ,and verticallyelonv gated-and tapered fluid Vchambers joining '.the 392' 1 headers andthe top andl bottom Walls of allY the chambers,. the outer wallsoflthefoutside, charni `bers being flush with'A thecorresponding'Wallsof the-headers; and longitudinally spacedftrans verse verticalV bridgingthe spacebetweenii" Y Ysaid chambers, and flnsextending outwardly off lthe outer. chambers a lengthv substantially equal tozhalf.theldistance'between adjacent chambers, Y g

the outer edges of Jisaid last named nsfb'eing 2.. A'concealedjheaterAunit having end headers, a vertical opening the -top'and bottom'of eachheader;V an annularthickened reinforcement Varoundeach ofsaidvertical'-openings;l laterally;r .l spaced lfluid chambers joiningfsaid-headersji 45"#` transverse vertical finsspaced throughout thelength of Vsaid unit; and4 supporting"angleV 'i brackets `having. theirupper vangle bifurcated '1l with a semi-circularrrecess' toVaccom'modate said annular thickened reinforcements for 'holding 'ysaidunit'against displacement. M 3. A concealed heater formedfroni`-va1-sing1e casting having end-manifolds and connecting'. J

fluid 'chambers forming a continuous'fluid pas.Z Y

sage vsurrounding a vertical'air ue Vor stack; and 7,.'

transversel vertical insbridging said fluid cham-3.y bersto divide said`'airffluefor stack'rand V'flirslexi tending outwardly'beyondsaid fluidchambersmafv n length substantially'equal to halfthe'distanceid-chambersjthe'outer edges` 01,

between adjacent flu of said last named iins`being'free; l Y. K fArrroNIo COURTEMANCHE. fr. 'suV the invention, Vwhat iis `25L l

